Home / 3,577.20-5,367.40-1,628.40

Finding the Fourth Proportional to 3,577.20, 5,367.40 and 1,628.40

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Solution

The fourth proportional to 3,577.20, 5,367.40 and 1,628.40 is: 2,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.20 : 5,367.40 = 1,628.40 : x
  2. Step 2: Convert to fraction form
    3,577.20/5,367.40 = 1,628.40/x
  3. Step 3: Cross multiply
    3,577.20x = 5,367.40 × 1,628.40
  4. Step 4: Simplify right side
    3,577.20x = 8,740,274.16
  5. Step 5: Solve for x
    x = 8,740,274.16/3,577.20
  6. Step 6: Final answer
    x = 2,443.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.